using System;
using System.Text;
using iTextSharp.tool.xml;
using iTextSharp.tool.xml.css;
using iTextSharp.tool.xml.net;

/*
 * $Id: CSSResolver.java 138 2011-05-31 10:11:40Z redlab_b $
 *
 * This file is part of the iText (R) project.
 * Copyright (c) 1998-2014 iText Group NV
 * Authors: Balder Van Camp, Emiel Ackermann, et al.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License version 3
 * as published by the Free Software Foundation with the addition of the
 * following permission added to Section 15 as permitted in Section 7(a):
 * FOR ANY PART OF THE COVERED WORK IN WHICH THE COPYRIGHT IS OWNED BY
 * ITEXT GROUP. ITEXT GROUP DISCLAIMS THE WARRANTY OF NON INFRINGEMENT
 * OF THIRD PARTY RIGHTS
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
 * or FITNESS FOR A PARTICULAR PURPOSE.
 * See the GNU Affero General Public License for more details.
 * You should have received a copy of the GNU Affero General Public License
 * along with this program; if not, see http://www.gnu.org/licenses or write to
 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
 * Boston, MA, 02110-1301 USA, or download the license from the following URL:
 * http://itextpdf.com/terms-of-use/
 *
 * The interactive user interfaces in modified source and object code versions
 * of this program must display Appropriate Legal Notices, as required under
 * Section 5 of the GNU Affero General Public License.
 *
 * In accordance with Section 7(b) of the GNU Affero General Public License,
 * a covered work must retain the producer line in every PDF that is created
 * or manipulated using iText.
 *
 * You can be released from the requirements of the license by purchasing
 * a commercial license. Buying such a license is mandatory as soon as you
 * develop commercial activities involving the iText software without
 * disclosing the source code of your own applications.
 * These activities include: offering paid services to customers as an ASP,
 * serving PDFs on the fly in a web application, shipping iText with a closed
 * source product.
 *
 * For more information, please contact iText Software Corp. at this
 * address: sales@itextpdf.com
 */
namespace iTextSharp.tool.xml.pipeline.css {

    /**
     * Resolves CSS rules for a given tag.
     *
     * @author redlab_b
     *
     */
    public interface ICSSResolver {

        /**
         * This method should resolve css, meaning, it will look at the css and
         * retrieve relevant css rules for the given tag. The rules must then be set
         * in {@link Tag#setCSS(java.util.Map)}.
         *
         * @param t the tag.
         */
        void ResolveStyles(Tag t);

        /**
         * Add a piece of CSS code.
         * @param content the CSS
         * @param charSet a charset
         * @throws CssResolverException thrown if something goes wrong
         */
        void AddCss(String content, String charSet, bool isPersistent);

        /**
         * Add a
         * @param href the link to the css file ( an absolute uri )
         * @throws CssResolverException thrown if something goes wrong
         */
        void AddCssFile(String href, bool isPersistent);

        /**
         * Add a piece of CSS code.
         * @param content the content to parse to css
         * @throws CssResolverException thrown if something goes wrong
         */
        void AddCss(String content, bool isPersistent);

        /**
         * Add a CssFile
         * @param file the CssFile
         */
        void AddCss(ICssFile file);

        /**
	     * The {@link FileRetrieve} implementation to use in {@link CSSResolver#addCss(String, boolean)}.
	     * @param retrieve the retrieve to set
	     */
        IFileRetrieve FileRetrieve {set;}

        /**
         * @return
         * @throws CssResolverException
         */
        ICSSResolver Clear();

    }
}
